Also listed on The Invention Science Fund I, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 12, 2026 · High confidence
20-year base term ended Feb 16, 2026
Held by Enterprise Science Fund, LLC
Filed Feb 16, 2006 as application 11/355,918 · Granted Dec 16, 2008
Base term plus 299 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
Feb 16, 2006
Feb 16, 2006
Term ends
Dec 12, 2026
Dec 12, 2026
Granted
Dec 16, 2008
Dec 16, 2008
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
299
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
7
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 299 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 16, 2006, when this application, 11/355,918, was filed | Feb 16, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +299 days, USPTO patent term adjustment record | Dec 12, 2026 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 12, 2026 | High confidence |
This family
| US 7,466,420 | this patent Dec 2026 | Dec 2026 |
| US 7,463,359 | Term ended Sep 2026 | Sep 2026 |
| Application PCT/US2007/004290 | PCT application no patent term | no patent term |
| Application PCT/US2007/004241 | PCT application no patent term | no patent term |
| US 7,859,676 | In force Dec 2026 | Dec 2026 |
| US 8,102,534 | Lapsed on the fee record Jan 2016 | Jan 2016 |
| US 8,310,680 | Term ended Feb 2026 | Feb 2026 |
The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Apr 7, 2006 Reel 17725, frame 789 | Hyde, Roderick A. | Searete LLC | Assignment of Assignor's Interest |
| Nov 9, 2009 Reel 23490, frame 654 | Searete LLC | Invention Science Fund I | Assignment of Assignor's Interest |
| Jan 15, 2016 Reel 37540, frame 628 | The Invention Science Fund I, LLC | Deep Science, LLC | Assignment of Assignor's Interest |
| Sep 18, 2023 Reel 64943, frame 1 | Deep Science LLC | Enterprise Science Fund, LLC | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
Dec 2026
Term ends Dec 12, 2026. No further fees fall due before then
Note
The 299 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2008 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.